2003 Chevrolet Trailblazer Ext Fuel and Emissions Systems

Essential 2003 Chevrolet Trailblazer Ext Fuel and Emissions Systems

Victor Reinz – Fuel Injector O-Ring Kit (Part No.18-10027-01)

Fuel Injector O-Ring Kit

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$8.79
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
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Carquest – Exhaust Gas Recirculation (EGR) Valve Motor Connector (Part No.PT5511)

Exhaust Gas Recirculation (EGR) Valve Motor Connector

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$38.99
BWD is an aftermarket leader, providing a premium line of engine management products. BWD manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD is constantly evolving to give customers the competitive edge they need to compete in today’s ever-changing marketplace.

Product Features:
  • Our distributor caps are made of high dielectric strength, glass/mineral reinforced polyester resin for less carbon tracking, greater resistance to electrical breakdown, and superior performance
  • Solid brass terminals (where available) make better connections and greater resistance to electrical pitting and corrosion
  • RFI resistors where specified to eliminate radio static and potential ECU-damaging spikes
  • With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues
  • BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product
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ACDelco – Multi-Purpose Pigtail (Part No.PT1031)

Multi-Purpose Pigtail

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$104.99
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Protective outer coverings help provide long-lasting durability
  • Color-coded wires allow for easy installation
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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ACDelco – Vapor Canister Purge Valve (Part No.214-2246)

Vapor Canister Purge Valve

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$62.99
ACDelco Professional Vapor Canister Purge Solenoid is a high quality aftermarket replacement component for one or more of the following vehicle systems: ignition, and/or engine fuel management. This premium aftermarket solenoid is manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:
  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco
  • Manufactured to meet expectations for fit, form, and function
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Felpro – Fuel Injection Throttle Body Mounting Gasket (Part No.61469)

Fuel Injection Throttle Body Mounting Gasket

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$13.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Dorman – Oxygen Sensor Pigtail (Part No.645-668)

Oxygen Sensor Pigtail

from

$62.99
Make better electrical repairs and accessory installations with this pigtail connector. Designed for a clean appearance when installed, it features weatherproof terminals and a locking tab for a reliable quick disconnect electrical connection.

Product Features:
  • Professional appearance – this electrical pigtail is designed for a clean, professional look when installed
  • Convenient solution – this pigtail connector allows the circuit to be quickly disconnected for service or occasional use
  • Durable construction – this pigtail connector features weatherproof seals and a locking tab for a reliable connection
  • Versatile component – this connector can be used in a variety of repairs and custom installations
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Autopart International Inc – MAP Sensor (Part No.C70441969794API)

MAP Sensor

from

$47.29
MAP Sensor

Driveworks – Electrical Relay (Part No.83296)

Electrical Relay

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$16.79
Driveworks® offers a line of aftermarket parts and accessories that are commercially acceptable and competitively priced, which provides professional technicians and DIYers with an affordable alternative for repairs.

Product Features:
  • Direct-fit OE replacement ensures ease of installation
  • Designed to meet OE performance
  • As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
  • As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
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Delphi – Fuel Pressure Regulator (Part No.C3000446165DEL)

Fuel Pressure Regulator

from

$129.49
For more than a century, Delphi has been making the parts cars are born with. Delphi is proud of its OE heritage, and over the years they have used that experience to expand into a global aftermarket supplier.

Product Features:
  • Robust diaphragm materials means longer life, improved durability and compatibility with a wide range of fuels
  • Precisely manufactured internal valves, diaphragms and springs means excellent performance under all engine operating conditions
  • Quiet operation
  • No audible regulator noise
  • Consistent and predictable fuel pressure throughout system range of control provides great drivability.
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Carquest – Fuel Injection Pressure Regulator (Part No.23090)

Fuel Injection Pressure Regulator

from

$114.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
  • Application-specific to ensure the proper fit and form
  • Precision-engineered pressure regulators for proper fuel delivery and engine performance
  • As a global manufacturer, we have complete control of the manufacturing process, from components to finished product?
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Dorman – Fuel Tank Strap (Part No.578-526)

Fuel Tank Strap

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$122.99
Recommended for replacement whenever the fuel tank is replaced or serviced, this strap is a direct replacement for the original. Manufactured from durable materials to withstand harsh road and weather conditions.

Product Features:
  • Direct replacement – this fuel tank strap matches the fit, function and performance of the original part
  • Ideal solution – recommended for replacement when the fuel tank is serviced or replaced
  • Durable construction – manufactured from quality materials for superior service and reliability
  • Trustworthy design – backed by 100 years of automotive aftermarket experience
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Carquest – Fuel Injector (Part No.67377)

Fuel Injector

from

$117.05
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
  • Stainless steel calibration slide and spring assembly prevents corrosion within the fuel control body leading to an extended service life
  • Precision wound and trimmed solenoid windings allow the computer to command efficient delivery of fuel
  • High-temp Viton O-rings enable prolonged sealing of injector under extreme heat conditions
  • Fiber optic yttrium aluminum garnet “YAG” laser welding and 100 million cycle testing ensure quality in every box
  • With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues
  • BWD is a global manufacturer of original equipment and aftermarket fuel injection products, complete quality control is maintained through the manufacturing process from componentry to finished product
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GM Genuine Parts – Passenger Side Multi-Port Fuel Injector Rail (Part No.17113695)

Passenger Side Multi-Port Fuel Injector Rail

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$202.99
GM Genuine Parts Fuel Injector Rails are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:
  • This part requires programming and/or special setup procedures. GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
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Carquest Premium – Diverter Valve (Part No.ECC1171)

Diverter Valve

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$77.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Dorman – Fuel Filler Neck Inlet Check Valve (Part No.577-106)

Fuel Filler Neck Inlet Check Valve

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$222.99
This fuel tank roll over valve is designed to match the fit and function of the original valve on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Saves money – this fuel tank roll over valve allows direct replacement of only a failed valve, rather than the entire tank
  • Upgraded material – aluminum construction prevents similar failures from original plastic design
  • Easy installation – 2 washers, 1 gasket, 1 threaded fastener and 1 installation wire included
  • Application specific – made to replace the original valve on certain Chevrolet and GMC vehicles
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GM Genuine Parts – Secondary Air Injection Pump Cover Gasket (Part No.219-351)

Secondary Air Injection Pump Cover Gasket

from

$15.99
GM Genuine Parts Secondary Air Injection Pump Check Valve Gaskets are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These gaskets help form a gas-tight seal between the check valve and secondary air components. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:
  • Helps maintain controlled air flow to proper air injection components
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
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Carquest Premium – Fuel Cap Tester Adapter (Part No.12422)

Fuel Cap Tester Adapter

from

$39.99
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:
  • BAR Certified adapters
  • Adapter check’s a fuel cap’s ability to hold pressure.
  • Adapters meet EPA standards for recommended fleet coverage.
  • Check adapter application chart for specific makes and models
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ACDelco – GM Original Equipment Fuel Tank Sending Unit Lock Ring (Part No.E2029575746ACD)

GM Original Equipment Fuel Tank Sending Unit Lock Ring

from

$18.63
ACDelco GM Original Equipment Fuel Tank Sending Unit Lock Rings are quality replacement parts for effectively sealing ACDelco GM OE Fuel Tank Sending Units. ACDelco GM OE Fuel Tank Sending Unit Lock Rings are a GM-recommended replacement for your vehicle’s original components. These original equipment lock rings are manufactured to fit your specific GM vehicle and will provide the same performance, durability, and service life as your factory original equipment.

Product Features:
  • GM-recommended replacement part for your GM vehicle’s original factory fuel tank sending unit lock ring
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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APA/URO Parts – Fuel Pump Tank Seal (Part No.E3004134881APA)

Fuel Pump Tank Seal

from

$13.80
Fuel Pump Tank Seal

Spectra Premium – Fuel Pump Wiring Harness (Part No.FPW53)

Fuel Pump Wiring Harness

from

$16.99
Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium wiring harnesses meet or exceed the performance of the original equipment they replace.

Product Features:
  • Manufactured with the highest grade materials to ensure product durability
  • Wires are coded with a durable plastic insulator for long lasting performance
  • All applicable hardware and components provided for product installation
  • Engineered and developed in Canada to replace corroded, damaged or worn out electrical connectors
  • Rigid and heat resistant molded connector to prevent electrical issues
  • 100% factory tested to meet or surpass OE specifications
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Felpro – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.72755)

Exhaust Gas Recirculation (EGR) Valve Gasket

from

$6.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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NTK – Ambient Air Temperature Sensor (Part No.AN0115)

Ambient Air Temperature Sensor

from

$12.99
Building upon a foundation of premium full-line products established under NGK ignition and NTK oxygen sensor products, NTK’s expansion to technical sensors is part of our ongoing commitment to streamline product types and increase coverage under one premium brand: NTK, The Sensor Specialist. With over 80 years of automotive expertise, NGK’s family of automotive products are driven by extreme dedication to innovation, performance and quality. NTK is the only OE supplier with a full-line of technical sensors in the aftermarket for import and domestic vehicles. Drawing from OE experience, NTK sensors undergo extreme testing conditions that include thermal shock, vibration and OBD verification. NTK sensors are manufactured to ensure a quality that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for full-line market support and OE application technology.

Product Features:
  • NTK’s Ambient Air Temperature Sensors are manufactured to operational performance standards to meet or exceed OE fit, form and function to ensure proper reading of outside air temperature.
  • The Ambient Air Temperature Sensor measures outside air temperature and is used by the heating and cooling control system, along with other vehicle cabin sensors, to control temperature and blower speed.
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NTK – Switching Oxygen Sensor: 4 Wire, 17.75" Long, Heated, Direct Fit (Part No.21545)

Switching Oxygen Sensor: 4 Wire, 17.75" Long, Heated, Direct Fit

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$91.99
NTK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, NTK uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.

Product Features:
  • OEM QUALITY: NTK is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
  • PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, NTK Oxygen Sensors offer superior OE fit, form, function
  • OE TECHNOLOGY: Upgraded to the latest OE technologies, NTK Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
  • EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
  • EASY INSTALLATION: NTK Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
  • ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
  • NTK ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability
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Carquest Premium – Secondary Air Injection Pump Check Valve (Part No.ECC1182)

Secondary Air Injection Pump Check Valve

from

$162.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Vapor Canister Vent Solenoid (Part No.CPC1007)

Vapor Canister Vent Solenoid

from

$33.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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GM Genuine Parts – Fuel Tank Sending Unit O-Ring (Part No.G30)

Fuel Tank Sending Unit O-Ring

from

$13.49
GM Genuine Parts Fuel Tank Sending Unit O-Rings are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These O-rings help seal out contaminants, and help protect your vehicle’s fuel tank sending unit. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:
  • Help seal out contaminants
  • Help protect fuel tank sending unit
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
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Felpro – EGR/EXHAUST AIR SUPPLY GASKET (Part No.70895)

EGR/EXHAUST AIR SUPPLY GASKET

from

$1.79
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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ACDelco – Fuel Injection Pressure Regulator (Part No.217-1445)

Fuel Injection Pressure Regulator

from

$138.99
ACDelco GM Original Equipment Fuel Injection Pressure Regulators are mechanical valves that control fuel pressure in the fuel injector rail, and are GM-recommended replacements for your vehicle’s original components. Their spring-loaded valves return excess fuel back to the fuel tank. These original equipment fuel injection pressure regulators have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Helps provide constant fuel pressure to the injectors
  • Assists in cold engine starts
  • Helps maintain stable engine idle
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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2003 Chevrolet Trailblazer Ext Fuel and Emissions Systems

You count on your 2003 Chevrolet Trailblazer Ext to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Fuel and Emissions Systems. With 135 Fuel and Emissions Systems ranging in price from $1.79 to $379.99, you’re sure to find everything you need for your 2003 Chevrolet Trailblazer Ext.

Brands matter. If you want to shop a specific Fuel and Emissions Systems brand, we stock 19 different brands like Carquest Premium, Felpro, and Delphi. 2003 Chevrolet Trailblazer Ext Fuel and Emissions Systems start as low as $1.79!

One of the best ways to find top quality OEM or aftermarket Fuel and Emissions Systems is by asking professionals. Short of that, you can shop with confidence thanks to our 5,574 extensive product reviews on 2003 Chevrolet Trailblazer Ext Fuel and Emissions Systems. Some of the top-rated Fuel and Emissions Systems products we carry are Locking Fuel Cap: 10506, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack with 4.4 stars and MAP Sensor with 4.9 stars.

Did we mention you can order your Fuel and Emissions Systems from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Fuel and Emissions Systems inventory for your 2003 Chevrolet Trailblazer Ext below to get started!

Top-Rated Fuel and Emissions Systems Brands For Your 2003 Chevrolet Trailblazer Ext

Trusted Fuel and Emissions Systems OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 Chevrolet Trailblazer Ext running right for years to come. In our inventory you’ll find brands like Carquest Premium, Felpro, Delphi, and even more.

Popular Dorman Fuel and Emissions Systems

You’ll find popular Dorman brand products across Fuel Wiring Connectors. All are waiting to get your 2003 Chevrolet Trailblazer Ext back on the road. Some of the top-rated Dorman products in these categories are:
7-Wire Pigtail Connector
from $29.49
(2)
7-Wire Pigtail Connector
Fuel System Wiring Harness Connectors

Top-Rated DENSO Fuel and Emissions Systems


If DENSO are what you’re looking for, our inventory holds plenty. We stock DENSO brand Fuel and Emissions Systems for your 2003 Chevrolet Trailblazer Ext, and some of our most reviewed DENSO parts include:

FAQs for 2003 Chevrolet Trailblazer Ext Fuel and Emissions Systems

What are the most purchased Fuel and Emissions Systems for the 2003 Chevrolet Trailblazer Ext?

Out of 135 Fuel and Emissions Systems for the 2003 Chevrolet Trailblazer Ext, the most popular in our inventory are:
Fuel Injector O-Ring Kit
from $7.49
(109)
Fuel Injector O-Ring Kit
Fuel Injector O-Ring Kits
Mass Air Flow Sensor (MAF) - 100% NEW
from $89.99
(2)
Mass Air Flow Sensor (MAF) – 100% NEW
Air Flow Meters and Mass Air

What are the top-rated 2003 Chevrolet Trailblazer Ext Fuel and Emissions Systems?

Top-rated Fuel and Emissions Systems for your 2003 Chevrolet Trailblazer Ext based on customer reviews/ratings are:
MAP Sensor
from $67.05
(27)
MAP Sensor
“It was what I need for the engine light to go off.”
Oxygen Sensor: 4 Wire, 11.77" Long, Heated, Universal Fit
from $81.99
(24)
Oxygen Sensor: 4 Wire, 11.77" Long, Heated, Universal Fit
“Oxygen sensor was exactly like the OEM, except you have to splice the plug onto the new sensor. No big deal, very simple and takes about ten minutes t”